/*
 * Copyright (c) Hisilicon Technologies Co., Ltd. 2016-2019. All rights reserved.
 * Description: On behalf of a display device, hwcomposer is called for composition and sent for display
 * Author: Hisilicon
 * Created: 2019.12.02
 */

#ifndef HWC_IAPI_ADAPTER_H
#define HWC_IAPI_ADAPTER_H

#include <hardware/hwcomposer2.h>
#include <hardware/hardware.h>
#include <hardware/fb.h>
#include <vector>

#include "HWCCallbacks.h"
#include "HWCCommon.h"
#include "HWCLayer.h"
#include "uapi_disp.h"

namespace android {
using HWCHdmiCallback = void (*)(hwc2_display_t id, HWC2::Connection state);
class HWCIapiAdapter {
public:
    static HWCIapiAdapter& GetInstance();

    HWCIapiAdapter() {}

    virtual ~HWCIapiAdapter() {}

    HWCIapiAdapter(const HWCIapiAdapter&) = delete;

    HWCIapiAdapter& operator=(const HWCIapiAdapter&) = delete;

    // Whether the specified display is connected by HDMI or MPI
    // Implemented in UAPI_VERSION(1, 0)
    virtual bool IsDisplayConnected(const int dislpay);

    // Get the display image max width and height
    // Implemented in UAPI_VERSION(1, 0)
    virtual int GetHdmiMaxPara(const int displayId, float &maxWidth, float &maxHeight);

    // Register callback for hdmi plug and unplug event
    // Implemented in UAPI_VERSION(1, 0)
    virtual int RegisterHdmiCallback(const int displayId, HWCHdmiCallback callback);

    // Unregister callback for hdmi plug and unplug event
    // Implemented in UAPI_VERSION(1, 0)
    virtual int UnregisterHdmiCallback(const int displayId);

    // Init the vo window
    // Implemented in UAPI_VERSION(1, 0)
    virtual int InitIapiModules();

    // Deinit the vo window
    // Implemented in UAPI_VERSION(1, 0)
    virtual int DeInitIapiModules();

    // Get the status of external display
    // Implemented in UAPI_VERSION(1, 0), default return false
    virtual int GetExternalDisplayStatus(uapi_disp_state *state);

    // whether need to switch display
    // Implemented in UAPI_VERSION(1, 0), default return false
    virtual bool IsDisplaySwitched();

    // Get fb device id following /proc/msp/gfbg[ID] by display id
    // Implemented in UAPI_VERSION(1, 0), default return 0
    virtual int GetFbDevId(const hwc2_display_t displayId) const;

    // Update virtual screen
    // Implemented in UAPI_VERSION(1, 0)
    virtual void UpdateVirtualScreen(const uint64_t displayId, const unsigned int width,
        const unsigned int height) const;

    // Set the vo window position for sideband video
    // Implemented in UAPI_VERSION(1, 0)
    virtual void SetVoWindowPosition(const native_handle_t &sideband, const hwc_rect_t &hwcRect, int zorder,
        int absZorder) const;

    // Disalbe vo window for sideband video
    virtual void DisableVoWindow(const native_handle_t &sideband) const;

    // Open gfx2d device for gfx2d compose
    // Implemented in UAPI_VERSION(1, 0)
    virtual int OpenGfx2dAndInitCapability();

    // Close gfx2d device
    // Implemented in UAPI_VERSION(1, 0)
    virtual int CloseGfx2d();

    // Allocate necessary memory and memset it to be zero for gfx2d compose
    // Implemented in UAPI_VERSION(1, 0)
    virtual int PrepareGfx2dBasicArg(const int layerNumber);

    // Prepare Source(Layer) info for gfx2d compose
    // Implemented in UAPI_VERSION(1, 0)
    virtual int PrepareGfx2dLayerArg(const HWCLayer &layer, const unsigned int i, const int fbWidht,
        const int fbHeight, const bool isAsync);

    // Prepare Dest(FrameBuffer) info for gfx2d compose
    // Implemented in UAPI_VERSION(1, 0)
    virtual int PrepareGfx2dDestArg(const int framebufferFd, const HWCBuffer &fbBuffer, const bool hwcCompress);

    // Process sync or async gfx2d compose, valid release fence will be returned for async compose
    // Implemented in UAPI_VERSION(1, 0)
    virtual int Gfx2dCompose(int layerReleaseFence[], const int layerNumber, int &fbRealeaseFence,
        const bool isAsync);

    // free the memory allocated duing the prepare basic arg
    // Implemented in UAPI_VERSION(1, 0)
    virtual void PostGfx2dCompose();

    // present layer buffer directly
    // Implemented in UAPI_VERSION(1, 0)
    virtual int FreshDirect(const int framebufferFd, HWCBuffer &layerBuffer) const;

    // Prepare framebuffer info and ready to fresh fb
    // Implemented in UAPI_VERSION(1, 0)
    virtual int FreshFb(const int framebufferFd, HWCBuffer &fbBuffer, const int composeType, const bool hwcCompress,
        const bool discardFrame) const;

    // Get Hdr info by HDMI iapi api
    // Implemented in UAPI_VERSION(1, 0)
    virtual int GetHdrInfo(const hwc2_display_t display, HdrCap &info) const;

    // Get Vsync time(us) with blocking
    // Implemented in UAPI_VERSION(1, 0)
    virtual int64_t GetVsyncTime(const int framebufferFd, unsigned int &freshRate) const;

    // Init display configs as well as active config
    // Implemented in UAPI_VERSION(1, 0)
    virtual int InitDisplayConfigs(const hwc2_display_t display, DisplayConfigs &configs,
        const framebuffer_device_t &device, unsigned int &active) const;

    // Init display configs as well as active config
    // Implemented in UAPI_VERSION(1, 0)
    virtual bool IsSupportGfx2dCompose();
    virtual bool CheckLayerNum(const size_t layerSize) const;
    virtual bool CheckLayerSize(const unsigned int cropWidth, const unsigned int cropHeight,
        const unsigned int dispWidth, const unsigned int dispHeight) const;
    virtual bool CheckResizeNum(const int layerNum, const int videoLayerNum) const;

    // set disp power state
    virtual void SetDispPowerState(const int displayId, const HWC2::PowerMode mode) const;
};
} // namespace android
#endif // HWC_IAPI_ADAPTER_H